Abstract
The thermal stability of the cellular structure of an austenitic Fe–17% Cr–12% Ni–2% Mo–1% Mn–0.7% Si–0.02% C alloy produced by selective laser melting in the temperature range 20–1200°C is investigated. Metallographic analysis, transmission electron microscopy, and scanning electron microscopy show that structural changes in the alloy begin at 600-700°C and are fully completed at ~1150°C. Differential scanning calorimetry of the alloy with a cellular structure reveals three exothermic processes occurring upon annealing within the temperature ranges 450–650, 800–1000, and 1050–1200°C.
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Original Russian Text © K.O. Bazaleeva, E.V. Tsvetkova, E.V. Balakirev, I.A. Yadroitsev, I.Yu. Smurov, 2016, published in Metally, 2016, No. 3, pp. 31–39.
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Bazaleeva, K.O., Tsvetkova, E.V., Balakirev, E.V. et al. Thermal stability of the cellular structure of an austenitic alloy after selective laser melting. Russ. Metall. 2016, 424–430 (2016). https://doi.org/10.1134/S0036029516050062
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DOI: https://doi.org/10.1134/S0036029516050062